Where is Miller County?

3 Miller Counties in 3 states · 73,986 people (2025)

There are 3 counties named Miller County in the United States, in Arkansas, Georgia and Missouri. The most populous is Miller County, Arkansas (county seat: Texarkana), with 42,357 people in 2025.

Map of the United States showing where all 3 Miller Counties are, labeled by state
Every Miller County in the United States (red), labeled with its state. Boundaries: U.S. Census Bureau, 2025. Free to use with attribution (CC BY 4.0).

All 3 Miller Counties

Sorted by state. Each link opens the county's map.

StateCounty seatPopulation 2025Land area (sq mi)EstablishedNamed after
Miller County, ArkansasTexarkana42,3576241874–
Miller County, GeorgiaColquitt5,8122821856–
Miller County, MissouriTuscumbia25,8175931837John Miller

Questions about Miller Counties

How many Miller Counties are there?

There are 3 Miller Counties in the United States, in Arkansas, Georgia and Missouri.

Which Miller County is the largest?

By population, Miller County, Arkansas (42,357 people in 2025). By land area, Miller County, Arkansas (624 sq mi).

Which Miller County is the oldest?

Miller County, Missouri, established in 1837. The newest is Miller County, Arkansas (1874).

How do I find out which Miller County an address is in?

Open the county map of the state: it has a search box for cities, towns and ZIP codes. On a phone, the "what county am I in" tool on our sister site uses your location.

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Other common county names